package com.atguigu.gulimall.order.config;

import org.springframework.amqp.core.Message;
import org.springframework.amqp.rabbit.connection.CorrelationData;
import org.springframework.amqp.rabbit.core.RabbitTemplate;
import org.springframework.amqp.support.converter.Jackson2JsonMessageConverter;
import org.springframework.amqp.support.converter.MessageConverter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import javax.annotation.PostConstruct;

@Configuration
public class MyAmqpConfig {

    @Autowired
    RabbitTemplate rabbitTemplate;
    @Bean
    public MessageConverter messageConverter() {
        //在容器中导入Json的消息转换器
        return new Jackson2JsonMessageConverter();
    }

    @PostConstruct//MyRabbitConfig对象创建完成以后，执行这个方法
    public void initRabbitTemplate() {
        //设置确认回调
        rabbitTemplate.setConfirmCallback(new RabbitTemplate.ConfirmCallback() {
            /**
             * 定制RabbitTemplate
             *    1、只要消息抵达Broker ack就等于True
             *          1、spring.rabbitmq.publisher-confirms=true
             *          2、设置确认回调ConfirmCallback
             *    2、
             * @param correlationData 当前消息的关联数据（这个是消息的唯一id）
             * @param ack 消息是否成功收到
             * @param cause 失败的原因
             */
            @Override
            public void confirm(CorrelationData correlationData, boolean ack, String cause) {
//                System.out.println("confirm--correlationData:"+correlationData+"ack:"+ack+"err"+cause);

            }
        });

        rabbitTemplate.setReturnCallback(new RabbitTemplate.ReturnCallback() {
            /**
             * 只要消息没有投递给指定的队列，就触发这个失败回调
             * @param message   投递失败的消息详细信息
             * @param replyCode 回复的状态码
             * @param replyText 回复的文本内容
             * @param exchange  但是这个消息发给那个交换机
             * @param routingKey 当时这个消息用哪个路由键
             */
            @Override
            public void returnedMessage(Message message, int replyCode, String replyText, String exchange, String routingKey) {
                System.out.println("returnedMessage"+"Message:"+ message+
                        "replyCode:"+ replyCode+"replyText:"+replyText+ "exchange:"+exchange+ "routingKey:"+routingKey);
            }
        });
    }

}
